Most people I know who run those axles have 3.5” backspace wheels. They are on 40s, so something with more backspacing might work with smaller tires. As for answers to the other questions, they strike me as the kind of thing you’ll find out once the axles are in. Sorry I can’t be more help.

 

I know you said “full width axles” but that is somewhat generic. How much wider are your 60’s than the stock axles? Knowing the two measurements, the width of the stock axles and the width of the 60’s, you can do the math to figure out what backspacing you need. Without knowing the width of the new 60’s, all you can do is guess.
Using 3.5” of backspacing as a starting point, for every inch wider the 60’s are you can run half an inch more backspacing.
Whatever you would need backspacing wise to run the chosen tires on stock axles, you can figure out how much more backspacing you can run on wider axles by using that math. 60’s are almost always wider than the stock axles. The question is how much wider.

 

I assumed he was talking about UD60s, which are 69” WMS. As I recall stock 44s are 65.5” WMS.

 

I run 3.5" BS wheels. That's pretty standard.

Get the axles installed and then worry about driveshaft length, I didnt have to do anything to my front tom woods shaft. There's enough slip in the shaft that often it doesnt matter for a small change.

I had my rear shaft lengthened because I stretched like 9", just take it to a driveline shop. Anyone can do it.

 

Sorry they are 72” wide with JK bracket kit fully welded. I am getting them from East Coast Gear Supply. King pin front and full float rear.

 

I would go with 4.75” backspace wheels with 72” wide axles, assuming no interference with your drag link or tie rod. In fact, that’s what I’m going with on the 72” wide axles I’m currently building.

 

Thanks guys. I ordered the axles Friday. Went with ARBs, chromo shafts, 5.38 gears, 72 inch WMS. Now, the hunt begins for wheels and tires.

I still have time to change ratios. I am still going to DD the Jeep, would I be better at 5.13?

 

I would stay with 5.38's. People pay a lot of money to have the lowest gear ratio possible. Dont cut yourself short. You're going to love it in the rocks.

Mine rarely drives on the street, but when it does, 5.38 is fine.

Sounds like you have a pretty bomb proof setup on the way. Even with a 2.72 transfercase, it's going to pull a house down.

 

I would stay with the 5.38s. Those axles are going to add a lot of weight to your Jeep. The extra gearing will help.

 

Late to the conversation but I thought I’d chime in.

I have the UD60’s and went with 4.5 BS on Battleborn 17x9 beadlocks with 38” Milestars MTs and have no issues with rub.

I have a MC 3.5” lift on my 4-door fwiw.


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